jQuery: First class that ends with match

Using JavaScript/jQuery, how can I get the first class item that ends with "aspx"?

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Demo</title>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.7/jquery.min.js"></script>
<script type="text/javascript">

$(document).ready(function() {

 alert('The first class item in the body tag that ends with aspx is ' + 'exampleaspx');

});

</script>
<style type="text/css">
div {
width: 100px;
height: 100px;
margin: 50 auto;
border: 5px solid black;
}
</style>

</head>
<body class="hello world exampleaspx test sampleaspx">

<div>
</div>

</body>
</html>

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LVL 16
hankknightAsked:
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David S.Connect With a Mentor Commented:
This should find it for you:
var m=$('body').attr("class").match(/[a-z-]+aspx(\b|$)/i);
var myClass = m?m[0]:'';

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0
 
leakim971Connect With a Mentor PluritechnicianCommented:
var currClass = $(body).attr("class");
var newClass = currClass.replace(/\s[^\s]*aspx|^[^\s]*aspx\s+/,"");
//alert(newClass);
$('body').attr("class", newClass);

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